Hi Phil-san,
Thank you very much for the patch!
> Sent: Thursday, July 02, 2015 5:06 PM
< snip >
> +/* VBUS change IRQ handler */
> +static irqreturn_t gpio_vbus_irq(int irq, void *data)
> +{
> + struct rcar_gen2_channel *channel = data;
> +
> + /* Wait 20ms before doing anything as VBUS needs to settle */
> + schedule_delayed_work(&channel->work, msecs_to_jiffies(20));
> +
> + return IRQ_HANDLED;
> +}
> +
> +static int probe_otg(struct platform_device *pdev,
> + struct rcar_gen2_phy_driver *drv)
> +{
> + struct device *dev = &pdev->dev;
> + struct rcar_gen2_channel *ch = drv->channels;
> + int irq;
> + int ret;
> +
> + /* GPIOs for Host/Fn switching */
> + ch->gpio_id = of_get_named_gpio_flags(dev->of_node,
> + "renesas,id-gpio", 0, NULL);
> + ch->gpio_vbus = of_get_named_gpio_flags(dev->of_node,
> + "renesas,vbus-gpio", 0, NULL);
> +
> + /* Need valid ID and VBUS gpios for Host/Fn switching */
> + if (gpio_is_valid(ch->gpio_id) && gpio_is_valid(ch->gpio_vbus)) {
> + ch->use_otg = 1;
> +
> + /* GPIO for ID input */
> + ret = devm_gpio_request_one(dev, ch->gpio_id, GPIOF_IN, "id");
> + if (ret)
> + return ret;
> +
> + /* GPIO for VBUS input */
> + ret = devm_gpio_request_one(dev, ch->gpio_vbus, GPIOF_IN, "vbus");
According to the checkpatch.pl, "line over 80 characters".
> + if (ret)
> + return ret;
> +
> + irq = gpio_to_irq(ch->gpio_vbus);
> + ret = devm_request_irq(dev, irq, gpio_vbus_irq, VBUS_IRQ_FLAGS,
> + "vbus_detect", ch);
> + if (ret)
> + return ret;
> +
> + /* Optional GPIO for VBUS power */
> + ch->gpio_vbus_pwr = of_get_named_gpio_flags(dev->of_node,
> + "renesas,vbus-pwr-gpio", 0, NULL);
Same above.
> + if (gpio_is_valid(ch->gpio_id)) {
> + ret = devm_gpio_request_one(dev, ch->gpio_vbus_pwr,
> + GPIOF_OUT_INIT_LOW, "vbus-pwr");
> + if (ret)
> + return ret;
> + }
> +
> + } else if (gpio_is_valid(ch->gpio_id)) {
> + dev_err(dev, "Failed to get VBUS gpio\n");
> + return ch->gpio_vbus;
> + } else if (gpio_is_valid(ch->gpio_vbus)) {
> + dev_err(dev, "Failed to get ID gpio\n");
> + return ch->gpio_id;
> + }
> +
> + return 0;
> +}
> +
> +/* bind/unbind the peripheral controller */
> +static int rcar_gen2_usb_set_peripheral(struct usb_otg *otg,
> + struct usb_gadget *gadget)
> +{
> + otg->gadget = gadget;
> + if (!gadget) {
> + usb_gadget_vbus_disconnect(otg->gadget);
Since the otg->gadget is NULL, this driver should not call this function here.
> + otg->state = OTG_STATE_UNDEFINED;
> + }
> +
> + return 0;
> +}
> +
> static int rcar_gen2_phy_probe(struct platform_device *pdev)
> {
> struct device *dev = &pdev->dev;
< snip >
> @@ -323,6 +540,14 @@ static int rcar_gen2_phy_probe(struct platform_device *pdev)
>
> dev_set_drvdata(dev, drv);
>
> + /*
> + * If we already have something plugged into USB0, we won't get an edge
> + * on VBUS, so we have to manually schedule work to look at the VBUS
> + * and ID signals.
> + */
> + if (drv->channels->use_otg)
> + schedule_delayed_work(&drv->channels->work, msecs_to_jiffies(100));
This line is also "line over 80 characters".
Best regards,
Yoshihiro Shimoda
> +
> return 0;
> }
>
> --
> 1.9.1
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